Fablehaven by Brandon Mull
Two kids are left with their grandpa while their parents go on a cruise. Seth and Kendra discover a magical world on their grandfather's property. I just started reading this book which was recommended to me by a kid.

Unprofessional Behavior by Will Manley
I've seen Mr. Manley speak before. He's a retired librarian who often writes funny articles about librarians. I'm really looking forward to what he has to say in this book :o)